Apparatus for cooling air



G. L. HOOPER.

' APPARATUS FOR COOLING AIR.

APPLICATION FILED SEPT. 30, 1919. 4 1,369,812,. Patented Man-1, 1921.

Nn N M U f. E N. Q 0 2 m mm M 3 N 4 mm 3 0 m e 2 .3 E m a Q'Sw Q 9 9w P ww 1 3 L w Y \s 9. mm n j N \Y Wu J3 "33$ 3 \& Q M 3 3. N mm m mmww -WwL: AME

ATTORNEY PATENT OFFICE.

GARFIELD I. HbOPER, F TOPE KA, KANSAS.

APPARATUS FOR COOLING AIR.

Specification of Letters Patent.

Application filed September 30,1919. Serial No. 827,508.

I To all whom it may concern:

Be it known that I, GARFIELD L. Hoornn, a citizen of the United States, residin at T0 eka, in the county of Shawnee and tate of ansas, have invented certain new and useful Improvements in Apparatus for Cool-- ing Air, of which the following is a specifi cation, reference being had therein to the accompanying drawing.

My invention relates to improvements in apparatuses which are used for cooling the air in theaters, auditoriums and the like, and

the objects of my improvements are, first; to provide a simple, substantial, durable and efficient system of this class, by the use of which the air in a theater and the like, can be circulated and be kept at any desired temperature without' the use of the heat rad1ating, expensive and frequently annoy-' ing electric fans now generally in use, and be operated and maintained at comparatively small ex ense, second; to provide thorough and e cient insulating means for the pipes of the system, thereby preventing;

the damage and annoyance arismg from the dripping therefrom of moisture condensed thereon, which is generally experienced in the use of apparatuses of this class, third; to provide ready means whereby the system can be quickly and easily arranged by an inexperienced person, for removing moisture from the air to any desired degree, and as.

easily be rearranged for cooling the air, fourth; to so construct and arrange the parts of'the apparatus, that it can be used for the distribution of heat and the circulation of theair heated thereby, fifth; to provide ready means whereby thesystem can be drained. v

I attain these objects by the mechanism illustrated in the accompanying drawings,

in which:

' Figure l is a side View embodying the apparatus, certain parts being broken away. Fig. 2 is a front view of the radiator and the air circulating mechanism. Fig. 3 is a top view of the brine pump.

The apparatus comprises the brine tank 1 the radiator 2, which is connected with sald tank by the cold brine pipe 3, the pipe 4 and the nozzle 5 which lead from said radiator into the liquid driven fan motor 6, the brine return pipe 7 the brine circulating pump 8 which is interposed in the pipe 3, and the hereinafter described vacuum insulating means for the pipes 3 and 7.

ends of said coil are provided with the valves 13 and 14 for controlling the circulation of ammonia therethroughl Said coil of pipe may also be used for circulating steain therethrough, when the system is use-d for heating the air in a theater. In this case the use of .salt in the tank 1 is also dispensed with and the coil located water is circulated through said system and returned to the tank.

The radiator 2 is composed of the vertically disposed header 15, with which the ends of the radiator pipes 16 are connected bywelding, brazing or the like. The partition 17 is formed with said header, in its center, for directing the circulated brine from its lower portion into the lower ends of said radiator pipes through which pipes the brine passes into the upper end portion of said header.

Patented Mani, 1921.

large opening I a refrigerating .One end of the pipe t is connected with v the upper end of the header .15. Said pi is provided with the valve 18 through which air is admitted into the system, while the brine is being drained from the latter,,

is. directed by said at part of said paddles in one side portionof said eupper portion of said valve is and motor.

The circulated brine nozzle, against th which are situated portion of the pipe 3..

motor, thereby rotating said paddles and p the therewith connected shaft and fan blades. Said brine gravitates from said motor, through the pipe 7, into-the tank 1.

The fan and its brine driven motor are of practically the same proportions as the conventional wall fan and its electric motor, but are noiseless, the motor does not radiate heat, but is extremely cold, acts as a radiator for absorbing heat from the surrounding air, is extremely cheap in cost of manufacture, installation and operation, and herein lies the prime elemental combination of my invention.

The brine circulating pump 8 is provided with the drive shaft 23, on which are secured the drive pulley 24 and the worm 25.

Said drive shaft is rotatably mounted in the shaft carrier 26 with which the controlling lever 27 is formed. Said lever-is de tachably held in any one of three positions by the pin 28, which is passed through an aperture through said lever and through the desired one of apertures 29, which are formed through the holding bracket 30, which is of segmental form, the lower end of which is secured on the bearing bracket 31, which latter is formed with the engine 8.

The lower, the upper and the intermediate apertures 29, in the order named, are provided with the words Cool Dry and Stop formed adjacent thereto, on the front surface of the holding bracket, for indicating the functions performed by the system, when said lever is held in said positions respectively.

The worm gear 32 and the spur pinion 33 are secured on the rotatably mounted countershaft 34. The worm pinion 35 and the spur gear 36 are secured on one end portion of the chankshaft 37., of the pump 8.

The last described group of parts form.

power transmitting means, whereby the power which is applied to the drive pulley 24:, may be transmitted therefrom to said crank shaft, for driving it at a higher or a lower speed, and for stopping the rotations of said crank shaft.

The radiator 2 and the motor 5 are provided with the catch basin 38, with which the upper endof the drain pipe 39 is connected. The lower end of said pipe .is not shown, but it will be understood that said lower end of said pipe and all of the described draining parts lead into a sewer or the like, not shown.

Said radiator and catch basin are mounted on the shelf 40, which shelf is secured on the wall 41.

The pipes 3 and 7 are provided with the air tight jacket tubes 42 and 43, respectively, forming air tight chambers 44 around said pipes. Said chambers are connected by the tube 45.. v

The tube 46 is connected with one of said chambers, the screw threaded end of which is adapted to have a vacuum pump secured thereon, whereby a vacuum is produced in said chambers. I

The tube 46 is provided with the valve 47 for closing the same after the vacuum is thus produced, for holding said vacuum and maintaining the thus provided vacuum insulation from heat for the pipes 3 and 7. p

In operation, with the parts in the position shown, and with the tank 1 filled with brine and ice; the operator extracts the pin 28 from the central one of apertures 29, moves the free end of lever 27 downward, and passes said pin through the lower one of said apertures. This movement of said lever oscillates the shaft carrying end of the shaft carrier 26 upward, thereby lifting the worm 25 into engagement with the worm pinion 35, for driving the crank shaft 37 o the pump 8 at its higher speed,

Said operator then appliespower to the pulley 24 for driving said pump, by which brine is pumped from tank 1, through the cold brine pipe 3 into the lower portion of the header 15, under pressure. Said brine passes thence through the radiator pipes 16 into the upper portion of said header, thence through the pipe 4 and the nozzle 5 into the motor 6, against the previously described portion of the paddles 20, thereby swiftly rotating clockwise, the shaft 21 and the thereon secured fan blades 22.

Said brine passes from said motor, through the pipe 7, into the tank 1.

Said fan blades are driven at such high speed that the moisture in the fan driven air which is condensed on said radiator and motor is blown therefrom and diffused with said air.

Said fan driven air is cooled by contact with said radiator and motor and is driven from the wall ll past said motor and radia tor, into the audience chamber of the theater in which said parts are placed.

It will be understood, that while a given volume of air is passing said motor and radiator at extremely high speed, said iven volume of air passes said parts in much less time than if moving at slow speed, and consequently much less heat is absorbed and moisture condensed therefrom. It will be further understood, that this high speed movement of the air provides a more evenly treated and larger volume of cooled air than if it moved slowly While the air in said theater is being thus cooled and circulated, moisture is prevented from condensing on the jacketed portions of pipes 3 and 7, by their previously described vacuum insulation.

When it is desired to extract the moisture from the air in said audience chamber, the operator of the apparatus withdraws the pin 28 from thelower one of the apertures 29,' raises the free end of lever 27 into register with the upper one of said apertures and inserts said pin therein, This movement of gear 32, which by its previously described back gear connections, rotates the crank shaft 37 at the slower speed.

It will be understood that this slower speed of the pump 8 circulates the brine through the radiator 2 and the motor 5 at suflicient speed to keep them cool, but

not at suflicient speed to so drive the motor and fan that the fan driven air will blow away the moisture which is condensed on said parts. This moisture accumulates as water, and gr'avitates from said radiator and motor into the catch basin 38, whence it gravitates through the drain pipe 39.

By shifting the power transmitting means as previously described, until the lever 27 is in the position shown, with the pin 28 in the central one of the apertures 29, the worm 25 is thereby moved from all engagement, and the pump is thereby stopped.

The words show an inexperienced operator inwhich position to secure the lever 27 to produce the desired results.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. The combination. of a radiator composed of tubes adapted to have a temperature controlling medium circulated therethrough; insulated conducting means con nected with the inlet side of said radiator through which said temperature controlling medium is conducted from a source of sup ply of the latter; a motor; connecting means through which said medium is conducted from said radiator into said motor for rotating the latter; return conducting means through which said medium is directed from said motor into said'source of supply; circulating means whereby said temperature controlling medium is circulated through said insulated conducting means, said radiator, said connecting means and'said motor Cool Dry and Stop under pressure in the order named; controlling means whereby said circulating means is controlled; and a fan driven by said motor for circulating air around said motor and the pipes of said radiator. v

2. The combination of; a radiator composed of tubes adapted to have chilled brine circulated therethrough; a liquid driven fan motor connected with the outlet side of said radiator; a fan driven by said motor for circulating air around said motor and radiator tubes; insulated cold brine conducting means one end of which is connected with the inlet side of said radiator; a brine container for containing chilled brine said container being connected with the other endof said brine conducting'means; insulated brine returning means whereby said motor and brine container are connected for returning brine from said motor into said container; circulating means whereby said brine is circulated .from said container through said brine conducting means said radiator tubes and said motor under pressure; and controlling means whereby said circulating means is controlled.

-3. In anair cooling apparatus a radiator composed of; a header tube; a partition formed in-said tube for separating its .interior into two compartments; conducting pipes connected with each one of the ends of. said header tube for conducting a tem perature controlling a ent into and from said tube; and a-plurahty of radiator tubes bent in semi-circular form the ends of said tubes being connected with said header tube for conducting said temperature controlling agent from one end portion of said header tube into its other end portion.

In testimony whereof I affix m si nature.

GARFIELD L. H 60 ER. Witnesses:

C(W. SNYDER, ELIZABETH Bom. 

